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E9F03: Why is the electrical length of a coaxial cable longer than its physical length?

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Why is the electrical length of a coaxial cable longer than its physical length?

Answer choices for E9F03
Why this wins

The reason is electromagnetic waves move more slowly in a coaxial cable than in air. Connect the cause in the question to this direct result instead of memorizing the answer letter.

Direct answer summary (2024-2028 NCVEC pool)

The official correct answer for E9F03 is Electromagnetic waves move more slowly in a coaxial cable than in air.

The reason is electromagnetic waves move more slowly in a coaxial cable than in air. Connect the cause in the question to this direct result instead of memorizing the answer letter.

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